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Summary

Description
English: (A) The human ear and frequency mapping in the cochlea. The three ossicles incus, malleus, and stapes transmit airborne vibration from the tympanic membrane to the oval window at the base of the cochlea. Because of the mechanical properties of the basilar membrane within the snail-shaped cochlea, high frequencies will produce a vibration peak near the oval window, whereas low frequencies will stimulate receptors near the apex of the cochlea (locations for three frequencies indicated schematically). Information from the cochlear receptor cells is transmitted to the cochlear nuclei via the 8th cranial nerve, and on through the midbrain to the cortex. (Redrawn from Figure 12.3 in [11].) (B) Lateral view of the human brain, with the auditory cortex exposed. The primary auditory cortex contains a topographic map of the cochlear frequency spectrum (shown in kilohertz). (Redrawn from Figure 12.15A in [11].)
Date
Source Perception Space—The Final Frontier, A PLoS Biology Vol. 3, No. 4, e137 doi:10.1371/journal.pbio.0030137 ([1]/[2])
Author Chittka L. and Brockmann A.
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human ear

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12 April 2005

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Date/TimeThumbnailDimensionsUserComment
current21:57, 28 April 2009Thumbnail for version as of 21:57, 28 April 20092,020 × 2,480 (989 KB)Mike.lifeguardmalleus and incus were swapped
04:06, 12 February 2009Thumbnail for version as of 04:06, 12 February 20092,020 × 2,480 (472 KB)Mike.lifeguard{{Information |Description={{en|1=(A) The human ear and frequency mapping in the cochlea. The three ossicles incus, malleus, and stapes transmit airborne vibration from the tympanic membrane to the oval window at the base of the cochlea. Because of the me

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